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Message-Id: <19da8ae0c05381b0967c8a334b67f86b814eb880.1630031207.git.vilhelm.gray@gmail.com>
Date: Fri, 27 Aug 2021 12:47:48 +0900
From: William Breathitt Gray <vilhelm.gray@...il.com>
To: jic23@...nel.org
Cc: linux-stm32@...md-mailman.stormreply.com, kernel@...gutronix.de,
a.fatoum@...gutronix.de, kamel.bouhara@...tlin.com,
gwendal@...omium.org, alexandre.belloni@...tlin.com,
david@...hnology.com, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
syednwaris@...il.com, patrick.havelange@...ensium.com,
fabrice.gasnier@...com, mcoquelin.stm32@...il.com,
alexandre.torgue@...com, o.rempel@...gutronix.de,
jarkko.nikula@...ux.intel.com,
William Breathitt Gray <vilhelm.gray@...il.com>
Subject: [PATCH v16 04/14] counter: Update counter.h comments to reflect sysfs internalization
The Counter subsystem architecture and driver implementations have
changed in order to handle Counter sysfs interactions in a more
consistent way. This patch updates the Generic Counter interface
header file comments to reflect the changes.
Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
---
drivers/counter/counter-core.c | 3 ++
include/linux/counter.h | 62 ++++++++++++++++------------------
2 files changed, 33 insertions(+), 32 deletions(-)
diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c
index c533a6ff12cf..3cda2c47bacb 100644
--- a/drivers/counter/counter-core.c
+++ b/drivers/counter/counter-core.c
@@ -38,6 +38,9 @@ static struct bus_type counter_bus_type = {
* This function registers a Counter to the system. A sysfs "counter" directory
* will be created and populated with sysfs attributes correlating with the
* Counter Signals, Synapses, and Counts respectively.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
*/
int counter_register(struct counter_device *const counter)
{
diff --git a/include/linux/counter.h b/include/linux/counter.h
index b69277f5c4c5..445f22d8bfe2 100644
--- a/include/linux/counter.h
+++ b/include/linux/counter.h
@@ -188,11 +188,10 @@ struct counter_comp {
/**
* struct counter_signal - Counter Signal node
- * @id: unique ID used to identify signal
- * @name: device-specific Signal name; ideally, this should match the name
- * as it appears in the datasheet documentation
- * @ext: optional array of Counter Signal extensions
- * @num_ext: number of Counter Signal extensions specified in @ext
+ * @id: unique ID used to identify the Signal
+ * @name: device-specific Signal name
+ * @ext: optional array of Signal extensions
+ * @num_ext: number of Signal extensions specified in @ext
*/
struct counter_signal {
int id;
@@ -206,7 +205,7 @@ struct counter_signal {
* struct counter_synapse - Counter Synapse node
* @actions_list: array of available action modes
* @num_actions: number of action modes specified in @actions_list
- * @signal: pointer to associated signal
+ * @signal: pointer to the associated Signal
*/
struct counter_synapse {
const enum counter_synapse_action *actions_list;
@@ -217,15 +216,14 @@ struct counter_synapse {
/**
* struct counter_count - Counter Count node
- * @id: unique ID used to identify Count
- * @name: device-specific Count name; ideally, this should match
- * the name as it appears in the datasheet documentation
- * @functions_list: array available function modes
+ * @id: unique ID used to identify the Count
+ * @name: device-specific Count name
+ * @functions_list: array of available function modes
* @num_functions: number of function modes specified in @functions_list
- * @synapses: array of synapses for initialization
- * @num_synapses: number of synapses specified in @synapses
- * @ext: optional array of Counter Count extensions
- * @num_ext: number of Counter Count extensions specified in @ext
+ * @synapses: array of Synapses for initialization
+ * @num_synapses: number of Synapses specified in @synapses
+ * @ext: optional array of Count extensions
+ * @num_ext: number of Count extensions specified in @ext
*/
struct counter_count {
int id;
@@ -243,27 +241,27 @@ struct counter_count {
/**
* struct counter_ops - Callbacks from driver
- * @signal_read: optional read callback for Signal attribute. The read
- * level of the respective Signal should be passed back via
- * the level parameter.
- * @count_read: optional read callback for Count attribute. The read
- * value of the respective Count should be passed back via
- * the val parameter.
- * @count_write: optional write callback for Count attribute. The write
- * value for the respective Count is passed in via the val
+ * @signal_read: optional read callback for Signals. The read level of
+ * the respective Signal should be passed back via the
+ * level parameter.
+ * @count_read: read callback for Counts. The read value of the
+ * respective Count should be passed back via the value
+ * parameter.
+ * @count_write: optional write callback for Counts. The write value for
+ * the respective Count is passed in via the value
* parameter.
* @function_read: read callback the Count function modes. The read
* function mode of the respective Count should be passed
* back via the function parameter.
- * @function_write: write callback for Count function modes. The function
- * mode to write for the respective Count is passed in via
- * the function parameter.
- * @action_read: read callback the Synapse action modes. The read action
- * mode of the respective Synapse should be passed back via
- * the action parameter.
- * @action_write: write callback for Synapse action modes. The action mode
- * to write for the respective Synapse is passed in via the
- * action parameter.
+ * @function_write: optional write callback for Count function modes. The
+ * function mode to write for the respective Count is
+ * passed in via the function parameter.
+ * @action_read: optional read callback the Synapse action modes. The
+ * read action mode of the respective Synapse should be
+ * passed back via the action parameter.
+ * @action_write: optional write callback for Synapse action modes. The
+ * action mode to write for the respective Synapse is
+ * passed in via the action parameter.
*/
struct counter_ops {
int (*signal_read)(struct counter_device *counter,
@@ -291,7 +289,7 @@ struct counter_ops {
/**
* struct counter_device - Counter data structure
- * @name: name of the device as it appears in the datasheet
+ * @name: name of the device
* @parent: optional parent device providing the counters
* @ops: callbacks from driver
* @signals: array of Signals
--
2.32.0
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